Home / 135,389.60-203,084.40-35,543.20

Finding the Fourth Proportional to 135,389.60, 203,084.40 and 35,543.20

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Solution

The fourth proportional to 135,389.60, 203,084.40 and 35,543.20 is: 53,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,389.60 : 203,084.40 = 35,543.20 : x
  2. Step 2: Convert to fraction form
    135,389.60/203,084.40 = 35,543.20/x
  3. Step 3: Cross multiply
    135,389.60x = 203,084.40 × 35,543.20
  4. Step 4: Simplify right side
    135,389.60x = 7,218,269,446.08
  5. Step 5: Solve for x
    x = 7,218,269,446.08/135,389.60
  6. Step 6: Final answer
    x = 53,314.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.